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PS CH 17 & 18 Vocabulary

Name:  _______________________________
Date:__________________Pd:____________
Across
A device that converts electrical energy into mechanical energy
A switch that opens a circuit automatically when the current exceeds a certain value
One of two points, such as the ends of a magnet, that have opposing magnetic qualities
The process of creating a current in a circuit by changing a magnetic field
A device that increases or decreases the voltage of alternating current
An electrical device that contains a metal strip that melts when current in the circuit becomes too great
A machine that converts mechanical energy into electrical energy
A material in which charges can move freely
A coil that has a soft iron core and that acts as a magnet when an electric current is in the coil
A coil of wire with an electric current in it
Down
An electric current that changes direction at regular intervals
A device that produces an electric current by converting chemical or radiant energy into electrical energy
An instrument that detects, measures, and determines the direction of a small electric current
The space around a charged object in which another charged object experiences an electric force
A region where a magnetic force can be detected
An electrical property of matter that creates electric and magnetic forces and interactions
The opposition presented to the current by a material or device
A circuit in which the parts are joined one after another such that the current in each part is the same